One vertex per element, one color per generator, with an edge from x to x·s.
(2,3)(9,10,13,14)(11,15,12,16)(17,18,20,25,21,24,28,23)(19,22,27,30,26,31,32,29)(1,2,4,3)(5,6)(7,8)(10,14)(15,16)(17,19,21,26)(18,22,24,31)(20,27,28,32)(23,29,25,30)(1,3,4,2)(6,8)(9,11,13,12)(10,15,14,16)(18,23)(20,28)(22,29)(24,25)(27,32)(30,31)(9,12,13,11)(10,15,14,16)(18,24)(19,26)(23,25)(27,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.